A Study Was Recently Conducted at a Major University to Estimate

Multiple Choice

A study was recently conducted at a major university to estimate the difference in the proportion of business school and non-business school graduates who go on to a higher degree program within five years of graduation A random sample of 400 business school graduates showed that 75 had gone to graduate school, while in a random sample of 500 non-business graduates, 137 had done so. The standard error for the difference in the proportions of the two groups is

A) 0.0279.
B) 0.
C) 0.0008.
D) 0.0865.
E) 0.1875.